In this scene, the parasite tries to control him in a similar way to his dream in Chapter 2-1. Ada, who has caught up with him, is attacked by the Plaga-controlled Leon. She manages to escape his attempt to asphyxiate her by stabbing him in the thigh with her combat knife. Regaining control, Leon apologises and takes the last of the Plaga-suppressant pills that Luis gave him just before his death.